Home / 2,309.78-3,465.75-1,336.70

Finding the Fourth Proportional to 2,309.78, 3,465.75 and 1,336.70

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Solution

The fourth proportional to 2,309.78, 3,465.75 and 1,336.70 is: 2,005.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.78 : 3,465.75 = 1,336.70 : x
  2. Step 2: Convert to fraction form
    2,309.78/3,465.75 = 1,336.70/x
  3. Step 3: Cross multiply
    2,309.78x = 3,465.75 × 1,336.70
  4. Step 4: Simplify right side
    2,309.78x = 4,632,668.03
  5. Step 5: Solve for x
    x = 4,632,668.03/2,309.78
  6. Step 6: Final answer
    x = 2,005.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.